Graphophone and talking-machine.



K. A. MAURER;

GBAPHOPHONE [LNQTALKING M AOHIZNEL IAPPLICATE-OH FILED M AY'3, 19101,099,458,

Patented June 9 73 5 'UniTED STATES PATENT oFFIoE.

KARL A. 'MAURER, OF LEIPZIG, GERMANY, ASSIGNOR TO PDLYPHON-MUSIKWERKEAKTIENGESELLSGHAFT. OF WAHREN. NEAR L'EIPZIG. GERMANY.

GRAPHOPHONE AND TALKING-MACHINE.

Application filed May 3.

' -l- .is a side useful Im )rovements in Graohonhones top.

resident of Leipzig, Kingdom of Saxony and and 'lalking-Machines ofwhich the following is a specification.

llhis i nventi ui has reference to talking machines, phon-ographs.graphophones and the like. which are provided with a born for theinrrpose of amplifying the sound. These sound amplifying horns occupymore space Germany v have invented certain new -.than the talkingmachine itself. If however the sound amplifying horn is located withinthe casing of the machine then the amplification of the sound is greatlyreduced because the o ening of the horn like 'ise must he greatlyreduced to find room within the casing. These eontrivances further havethe disadvantage that the sound is strongly conveyed solely in thedirection in which the horn is placed.

It is the purpose of thepresent' invention to avoid the abovedescrilgied deficiencies and to produce a talking machine with a soundamplifier within the casing that conveys sound in all directions. Thishas been primaril attained by arranging the ainpli fving device within'the casing so that its opening is at the top and by placing the motoror part of s: me within or before the opening of said amplifier.

The invention is illustrated in the accompan ving drawing in which:

Figure 1. 11111 strates in side elevation partly in section a soundrecording and reproduc-- the record supportis shown to be arrangedopening of the amplifier. Fig. elevation. and Fig. 5. a top plan viewshowing a modified form of sound anr plifving device.

Similarcharacters of reference denote like parts in allthe figures. I

The casino A of the apparatus shown in Figs. 1 and 2 is a simple h xwhich is open at tht top. The sound ainpliiiving device B is arrangedwithin the casing A in such manner that its opening likewise is at thebefore the i The motor f for the record support D is Patented June 9,191 4.

1910. Serial No. 559,170.

secured to a special bridge E so that it reaches into the soundamplifying device when the bridge E is placed horizontally across thecasing A. The motor may be di- 'rectly mounted on the bridge E orfirst-so cured to a special plate as desired Tn the form of apparatusillustrated in l igs. l and 2 the motor 0 is surrounded by asei'ui-spherieal casing F. double purpose. first it prevents dust: fromentering and second, it exposes only smooth surfaces to the sound wavesproduced in new placed on the record support D and the motor startedthen the sound is reproduced in the usual manner by means of the soundbox H communicating with the arm I and the tube K conveying thus thesound into the amplifier. The large hollow body of the amplifierincreases the Strength of the sound,an'd' as the amplifier is open atthe top the sound is conveyed uniformly in all directions.

It is immaterial whether the tube Keennects with the bottom of theamplifier B or on the side. In order to haveno protru'd ing parts on thecasing A the downward portion of the tube'K may be mounted within thecasing A as shown in Figs. 4 and-5. It is further immaterial for thepurpose of the'present invention whether the motor is placed below thebridge E or above the same. In the latter case the motor will he infront of the opening of the amplifying device B. The motor may also bemounted on the bottom of the amplifier without bridge or it may beotherwise suitably supported within the amplifier leaving then theopening of the same completely free.

Fig. 3. illustrates a talking machine in which the motor C is locatedbelow the aux-- plifying device within the casing A so that only theshaft L passes through said device and the record support. D mountedthereon is above the opening of the amplifier hen the shaft L passesthrough the center of the amplifying device it ma also be supported in asecond bearing in the special plate above mentioned in relation to Figs.1 and 2. The shaft L i -suitablv surrounded with a guide hearing orelonga ted bushing M which exends in to theamplifier. At the upper endof the shaft right abo we theopening of the amplifier the record supportI) is secured which is adapted toreceive theirecordl The This answers av the amplifying device B. If a record on ioe ' that it may beconveniently reached by the sound arm I. In this instance the tube Kconnects with the amplifier on the side of the same to allow ofmoui'iting the motor can trally below as shown in Fig. 3. Theamplifier-may also be mounted on a flange M oi the bushing M independentfrom the motor. The amplifier may also be entirely dispensed with if thecasing A is constructed so that it possesses suflicient' resonance. Themotor may further be arranged alongside the amplifier and its motiontransmitted to the shaft L in suitable manner.

The modified form illustrated in Figs. 4 and 5 comprises a casing A'forthe talking machine consisting of a four sided box which is open'at thetCp. Within the casing there is an} amplifier of octagonal form soarranged that on the four sides N, O, P, Q, thereare mounted inclinedsounding boards or iralls N 0 P Q}, which are adapted to convey thesound in an upward direction. Between these four inclined walls thereare the vertical, walls R, S, T, U. However all these straight walls orpart of them are cut out forming incisions V. The motor C may be mountedbelow the bridge E and the record support D above the same. Thereproduced sound is conveyed in this construction through the sound armI in a downward direction and enters through the opening W in theinclined wall;O into the amplifier from where it is conveyed in anupward direction and also through openings V oi the side Walls of thecasing.

The abovedescribedarrangement of the amplifying device may be used forrecord plate machines as well as for cylindrical machines.

I claim as my invention:

1. In talking machines, the combination of a cabinet, asound amplifyinghorn inclosed therein and having its exit end upwardly directed, a motorinclosed in a casing "positioned in the exit end of said horn, a recordsupport adapted to be rotated by said motor, and a reproducer adapted tooperate upon a record carried by said support and connected to saidhorn, substantially as described.

2. In talking machines, the combination oi a sound amplifying horn, amotor inclosed in a casing, the said casing being positioned in the exitportion of said horn so as to form an annular sound conduit therewith, arecord support adapted to be rotated by said motor, and a reproduceradapted to operate upon a record carried by said support and connectedto said horn, substantially as de scribed.

3. In talking machines, the combination of a cabinet, a sound amplifyinghorn inclosed therein and having its exit portion upwardly directed, amotor inclosed in a casing, the said casing being positioned in the exitportion of said horn so as to form an annular souiu'l'conduit therewith,a record support adapted to be rotated by said motor, and a reproduceradapted to operate upon a record carried by said support and connectedto said horn, substantially describ d.

l. In a talking machine, the combination of an amplifying soundconveyor, of a rotary. record support, a. casing arranged to form withsaid conveyer an annular s and conduit, actuating means for said supp rtin said casing, and reproducing means commu- 'nicatin with said conve erand arran ed in operative relation with respect to said support,substantially as described.

5. In a talking machine. the combination oi an. amplifying soundconveyor, a rotary record support coaxial with the exit portion of saidconveyer, a casingarrangcd coaxial with said support and arranged toform with the exit portion of said conveyor an annular sound conduit,actuating means for said support in said casing, and reproducing meanscommunicating with said conveyer and arranged in operative relation withrespect to said support, substantially as described. I

6. In a talking machine, the combination of an amplifying sound conrcyerhaving an upwardly directed exit portion, a rotary record supportcoaxial with said exit portion, a casing coaxial with said recordsupport and arranged to form with said exit portion an annular soundconduit", actuating means for said support in said casing, andreproducing means communicating with said conveyor and arranged inoperative relation with respect to said support, substantially asdescribed.

K Signed at Leipzig, Germany, this 19th day of April, 1910.

KARL A. MAURE It.

lVitnesses:

-RUDOLPI-I Futons,

ALBERT Il. Monawn'rz.

